If the DT, HT, and ST are in OK shape, maybe you can mask those off while you tend to those stays and the fork with some more involved sanding and rattlecanning.
That way you'd preserve the nice pinstriping on the lugs, the stickers, and the character of the bike, while still preserving the rest of the bike. I doubt you'll have trouble getting a reasonable color match.
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The bicycle, the bicycle surely, should always be the vehicle of novelists and poets. Christopher Morley